A physical system of a superconductor or ion trap is used to construct a quantum computer. The quantum hardware of the present generation is called Noisy Intermediate-Scale Quantum (NISQ) hardware[1]}. This is because in the quantum system, errors such as error of interaction between qubits, error of constructing qubits, and error due to the external environment. Therefore, these errors should be handled appropriately. One method to do this is to use a quantum error correcting code(QEC code)[2]}, [3]}, [4]}, [5]}.
